Influences of Enzyme Complex Supplementation on Growth, Ileal and Apparent Fecal Digestibility and Morphology of Small Intestine in Pigs

  • Kim, B.G. (School of Agricultural Biotechnology, Seoul National University) ;
  • Tian, J.Z. (School of Agricultural Biotechnology, Seoul National University) ;
  • Lim, J.S. (School of Agricultural Biotechnology, Seoul National University) ;
  • Kil, D.Y. (School of Agricultural Biotechnology, Seoul National University) ;
  • Jeon, H.Y. (CTC Bio Ltd., Seoul) ;
  • Chung, Y.K. (DangJin Livestock Cooperative Feed Mill) ;
  • Kim, Y.Y. (School of Agricultural Biotechnology, Seoul National University)
  • Received : 2003.09.09
  • Accepted : 2004.07.28
  • Published : 2004.12.01


A total of 140 weaning pigs were used to determine the effects of digestive enzyme supplementation to corn-soybean meal diets on growth performance, physiological changes of small intestine, microorganisms and pH in the gastrointestinal tract. Two kinds of enzyme complex (A, B) were used in this experiment. Pigs were allotted in a completely random design (CRD) to five replicates with four pigs per pen. Diets and water were provided for ad libitum consumption. Treatments included 1) Control: without enzyme supplementation, 2) Enzyme A 0.05%, 3) Enzyme A 0.10%, 4) Enzyme A 0.15%, 5) Enzyme B 0.05%, 6) Enzyme B 0.10%, 7) Enzyme B 0.15% in the diets. A total of 24 crossbred barrows 25.78${\pm}$0.55 kg BW fitted with simple ileal T-cannulas were used to evaluate the effect the enzyme addition on the nutrient digstibility. Pigs were allotted 4 treatments (No enzyme, enzyme A 0.05%, enzyme A 0.1%, enzyme A 0.15%), 6 replicates according to a completely random design (CRD). Another digestibility trial was followed for enzyme complex B. Twenty pigs, average 31.92${\pm}$0.37 kg BW, fitted with simple ileal T-cannulas for digestibility trial. Neither enzyme A nor enzyme B affected on fecal or ileal digestibility of dry matter, gross energy, crude protein, crude fat and crude ash (p>0.05). The apparent fecal digestibilities of all the nutrients were higher in total feces collection method than in indirect method. At the end of feeding trial, 21 pigs were slaughtered for examining the morphological changes of small intestine and the concentration of microorganisms in the ileum and the colon. Growth performance, intestinal morphology and pH of ileum and colon were not affected by the either enzyme complex supplementation (p>0.05). These results suggested that enzyme complex A and enzyme complex B were of no benefit to early-weaned pigs when corn-soybean meal based diet was provided.


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